The Crest of the House of Mantles Module converts ten House of Mantles Victory Banners into one White LEGO Brick per day, plus one for every five clicks. There is a limit of ten White LEGO Bricks per harvest.
The Module description says that it grows a brick for every five clicks when it actually takes ten.
The name of this should be singular, i.e. "Crest of the House of Mantles Module", however LEGO has accidentally put an 's' at the end and has either been unnoticed or just has not fixed it yet, due to the lack of updates on MLN.